2228666 has 32 divisors (see below), whose sum is σ = 3965760. Its totient is φ = 928000.

The previous prime is 2228663. The next prime is 2228687. The reversal of 2228666 is 6668222.

It is a d-powerful number, because it can be written as 2² + 2¹⁶ + 2¹⁶ + 8⁷ + 6 + 6³ + 6³ .

It is not an unprimeable number, because it can be changed into a prime (2228663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22016 + ... + 22116.

It is an arithmetic number, because the mean of its divisors is an integer number (123930).

2^2228666 is an apocalyptic number.

2228666 is a deficient number, since it is larger than the sum of its proper divisors (1737094).

2228666 is a wasteful number, since it uses less digits than its factorization.

2228666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its digits is 13824, while the sum is 32.

The square root of 2228666 is about 1492.8717292520. The cubic root of 2228666 is about 130.6215990049.

It can be divided in two parts, 222 and 8666, that added together give a palindrome (8888).

The spelling of 2228666 in words is "two million, two hundred twenty-eight thousand, six hundred sixty-six".